公开(公告)号：US20100303179A1

公开(公告)日：2010-12-02

申请号：US12856923

申请日：2010-08-16

Applicant: Osamu INAGAWA ,  Junya TSUCHIDA

Inventor： Osamu INAGAWA ,  Junya TSUCHIDA

IPC: H04L27/06

CPC classification number: H04L27/2662 ,  H04L7/0058 ,  H04L7/042 ,  H04L27/2675

Abstract: A synchronization timing detecting apparatus includes a correlation calculator configured to generate a first correlation value by calculating a cross-correlation between an input signal being sampled and a reference signal or an auto-correlation of the sampled input signal, an interpolation processor configured to generate a second correlation value interpolating a plurality of the first correlation values having a different combination of sampling points of the input signal, and a detector to detect a synchronization timing based on the first and the second correlation values.

Abstract translation: 同步定时检测装置包括：相关计算器，被配置为通过计算被采样的输入信号与参考信号之间的互相关或产生采样的输入信号的自相关来产生第一相关值;内插处理器， 内插具有输入信号的采样点的不同组合的多个第一相关值的第二相关值和基于第一和第二相关值检测同步定时的检测器。

公开(公告)号：US20120281791A1

公开(公告)日：2012-11-08

申请号：US13460683

申请日：2012-04-30

Applicant: Junya TSUCHIDA

Inventor： Junya TSUCHIDA

IPC: H04L27/00 ,  H04B1/06

CPC classification number: H04B1/7156 ,  H04B2001/71563 ,  H04B2201/713 ,  H04L7/0029 ,  H04L27/0014 ,  H04L27/2663 ,  H04L2027/003 ,  H04L2027/0046

Abstract: A radio receiving apparatus according to the present invention receives a preamble signal through one frequency band and also detects a periodic symbol timing in a receiving period of a part of a symbol that composes the preamble signal. A frequency correction circuit includes a generating unit, a detecting unit, and a correction unit. The generating unit generates a detection window of a predetermined time width including each of a first and a second symbol timing that are previously determined among the periodic symbol timings in the receiving period of a remaining symbol that composes the preamble signal. The detecting unit sequentially receives a correlation value between the preamble signal and a reference signal and detects a maximum value from the correlation value input during a period when the detection window is opened. The correction unit corrects a frequency deviation of the one frequency band based on the maximum value.

Abstract translation: 根据本发明的无线电接收装置通过一个频带接收前同步码信号，并且还检测构成前同步信号的符号的一部分的接收周期中的周期性符号定时。 频率校正电路包括发生单元，检测单元和校正单元。 生成单元生成预定时间宽度的检测窗口，该检测窗口包括在构成前置信号的剩余符号的接收周期中的周期性符号定时之间预先确定的第一和第二符号定时中的每一个。 检测单元顺序地接收前导码信号和参考信号之间的相关值，并且从检测窗口打开的期间输入的相关值检测最大值。 校正单元根据最大值校正一个频带的频率偏差。